Temporary or loose-leaf binder.



No. 721,099. PATENTED FEB. 17, 1903.

I. H. SISSON. TEMPORARY 0R LOOSE LEAF BINDER.

APPLICATION FILED JUNE 14, 1902.

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No.721,099. v PATENTED FEB. 17, 1903.

I. H. SISSON.

TEMPORARY 0R LOOSE LEAF BINDER.

APPLICATION FILED JUNE 14, 1902.

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UNITED STATES PATENT OFFICE.

ISAAC SISSON, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO THE J. O. HALLCOMPANY, OF PROVIDENCE, RHODE ISLAND, A CORPORATION OF RHODE ISLAND.

TEMPORARY OR LOOSE-LEAF BINDER.

SPECIFICATION zormingpart of Letters Patent No. 721,099, dated February17, 1903.

Application filed June 14, 1902. Serial No. 111,640. (N model.)

To all whom it may concern:

Be it known that I,IsAAo H. S1ssoN,a citizen of the United States ofAmerica, and a resident of the city and county of Providence, in

the State of Rhode Island, have invented certain new and usefulImprovements in Temporary or Loose-Leaf Binders, of which the followingis a specification.

My invention relates to temporary bindl0 ers, so called; and itconsists, essentially, in the combination of a two-part telescopingframe, transversely-arranged spring-pressed telescoping pins orleaf-holders, a self-locking device secured to said frame having amember thereof in normal frictional engagement therewith and capable ofindependent movement, and a key-actuated cam or wedge operativelyconnected with the locking member, whereby the latter may be retractedfor the purpose of opening or expanding the binder, all as will be morefully hereinafter set forth and claimed.

In binders of the class forming the subject of my invention it isdesirable that the mechanism employed consist of as few parts aspossible, thereby reducing the cost and weight of the binder'andincreasing its efficiency.

The object I have in view is to produce a go binder having the followingadvantages: It

possesses greater holding capacity, it is simple in construction and inthe manner of its operation, it can be opened and closed or expanded andcontracted with greater facility 5 and rapidity, it is not liable tobecome inoperative,ithas no clips or ratchets, and,finally,

it possesses afiner degree of adjustment than binders of this typeheretofore devised.

In theaccompanying two sheets of drawings, Figure 1 represents a sideelevation of my improved temporary-binder frame, the

backing and flexible covering being omitted.

Fig. 2 is a corresponding plan view, the frame being fully closed orcontracted. Fig. 3 is an enlarged transverse section taken substantiallyon line 3 3 of Fig. 2 and also showing portions of the backing andcovering. Fig.

4 is an enlarged cross-section taken on line 4 4 of Fig. 1. Fig. 5 is anenlarged horizontal section taken on line 5 5 of Fig. 1. Fig. 6 is atransverse section taken on line 6 6 of Fig. 5. Fig. 7 is a perspectiveview of one of the members of the locking device. Fig. 8 is a horizontalsectional view corresponding with Fig. 5, but showing theframe unlockedand partially separated. .Fig. 9 is a partial front elevationcorresponding with Fig. 8, portions of the casing being omitted. Fig. 9is a perspective view of the key. Fig. 10 is a partial cross-sectiontaken online 10 10 of Fig. 9. Fig. 11 is a partial front view of theframe. Fig. 12 is 'a perspective view of the frame complete with covers,back, and leaves; and Fig. 13 represents, in reduced scale, one of theleaves adapted to be used in the binder.

The binder-frame proper consists of the two laterally separabletelescoping members a and I), having telescoping pins or leaf-holders ob secured thereto. Each frame member is made of suitable sheet metal cutto the desired form and size and bent to an L shape and having upturnedends, the construction being such that when superposed and reverselyarranged, substantially as shown in Figs.2 and 4,the members form arectangularshaped frame, the ends a of one piece being adapted to slidein the grooved or recessed ends 7) of the other. (See Fig. 2.) The saidleaf-holders are hollow and are provided with interior springs s, thefunction of the springs being to force the frame members apart whenunlocked.

The looking or securing device is mounted in the lower portion of theframe below the leaf-holders. A longitudinally-grooved block a issecured to the base of member a. The inner end of one side of saidgroove is receseed or enlarged and provided with a beveled orwedge-shaped surface w. (See Fig. 5.) To the other frame member bis'secured a bar f, slidably seated and guided in the grooved portion ofsaid block 0. The barf is grooved longitudinally along its inner edge toreceive the thin locking member g. This latter passes through the frontside of member a and is upturned at its outer end to form a lip g. Itsopposite end is enlarged and has a recess 9 in which a locking-roll r isrevolubly mounted. A helical spring 8 is seated in the block 0 and bearsagainst the inner end portion of memtoo her g, a short stem g serving tomaintain the spring in position laterally.

Itwillbe seen,referringtoFig.5,thatthe roll 1' is interposed between andbears frictionally against the adjacent sides or faces of the said bar fand the beveled surface 10, the spring 3 serving to force the lockingmember g and its roll ahead or inwardly, thereby keeping the framenormally locked by reason of the wedge action of the roll against theadjacent surfaces f w, as before stated.

In order to provide means for quickly releasing or unlocking the binder,I employ a revoluble cam or wedge 72., arranged to coact with the saidlocking-bar g, the inner end of the cam being mounted in a hole orbearing formed in the front side of the frame member a. The bar 9 passesthrough the frame below the cam, its outer or lip portion g extending infront of and being in engagement with the cams face, as clearly shown.The form of the cam is such that upon turning it a partial revolution inthe proper direction the bar Q will be retracted a corresponding degree,thereby forcibly withdrawing the roll 7 from the surface w and unlockingthe binder. (See Fig. 8.) A reversal of the operation frees the cam fromthe bar and allows the spring 5 to advance the bar and roll to thenormal or locked position. The cam may be rotated or actuated by meansof a removable key 70, (shown in Fig. 9,) the same having an end adaptedto engage a slotted recess it, formed in the outer end of the cam.

The foregoing constitute the mechanical features of my invention. Inorder, however, to arrange the frame, &c., into a practical book orcover form, the back and two outer sides are provided with stiifeningmembers m m m, respectively. (See Fig. 3.) These may be covered withleather or other suitable material 6 capable of being finished orornamented, as desired. The two covers proper, m may be similarlycovered and joined to the side members m by a flexible joint 6 in anywell-known or usual manner.

The thickness of the front side stifiening member is substantially thesame as that of the cam h, a hole m being formed in said side member tofreely receive the cam. If desired, a fixed key-plate or escutcheon hmay be used, the same concealing the hole m and having an opening h,through which the key is inserted to actuate the cam.

I would add that the block a is provided with a removable cover 0,having a slotted opening therein, in which a pin 0 secured to theslidable bar f, is adapted to move whenever the binder is manipulated toreceive or withdraw leaves therefrom. The slot and pin also serve tolimit the lateral expansible movement of the binder.

In a book or ledger A embodying my invention the two frame members andthe telescoping leaf-holders may be readily expanded or contracted, asdesired, after turning the cam h to retract the locking-bar g and itsroll. (See corresponding positions in Figs. 8 and 1O.) The leaves 1)(shown in reduced scale in Fig. 13) are provided with a series of holes1), adapted to register with and fit the leaf-holders. Each holecommunicates with a slotted opening 19 extending therefrom to the loweredge of the leaf or sheet. After the adjustment of the binder has beenmade and the leaves added to or removed from the binder, as desired, thecam is turned in the opposite direction and the key withdrawn,-

the spring 8 at the same time automatically advancing the bar g andwedging the roll 7' between the adjacent surfaces f and w, thus lockingthe binder and completing the operation.

I claim as my invention and desire to secure by United States LettersPatent-- 1. In a temporary binder or binding-case for removable leaves,the combination with a telescoping frame having cover members connectedtherewith and telescoping leafholding pins secured to said frame, of alocking device comprising transversely-disposed guide members secured tosaid frame, one of said members having an inclined or wedging portion,an endwise-movable locking-bar slidably mounted between the said guidemembers, a roll carried by said locking-bar arranged to engage saidwedging portion and the opposite face of the other guide member, and arevoluble cam mounted in the frame and operatively connected with thelockingbar, substantially as described.

2. The combination, in a temporary binder, of a pair of parallel frames,at b, transverselyarranged telescoping pins secured to said 'frames,guide members, f 0, located within rigidly secured to and extendingtransversely of the frames, one of said guides further having a beveledor wedging surface, a springpressed endwise-movable locking-bar ginterposed between the guides having an end thereof arranged to engagesaid beveled surface,and means for retracting the locking-bar.

3. In a temporary binder for removable leaves, the combination with thetelescoping frame members and leaf-holding pins secured thereto, of asuitably-mounted spring-pressed locking member, a wedging elementsecured to one of said frame members in normal contact with the lockingmember, a bar secured to the other member of the frame in normalfrictional engagement with said locking member, and a key-actuated camor wedge having the locking member connected therewith, substantially asdescribed.

4. In a temporary binder for removable leaves, the combination with thetwo laterally-separable principal frame members provided withleaf-holding pins, of an endwisemovable locking-piece having its innerend adapted to frictionally engage a beveled surface integral or movablewith one of said frame members, a key-actuated axially-movable cammounted in the said frame member and having the outer end of saidlocking piece in engagement with the cam, and a bar secured to andmovable with the other member of said frame and engaging the said innorend portion of the locking-piece, substantially as described.

5. In a temporary binder for removable leaves, upper and lowerlaterally-separable members comprising the frame proper and leaf-holdingmeans connected therewith, in combination with a wedging member securedto one of said parts of the frame, a slidable bar attached to the otherpart or member of the frame, an independently-movable locking-barinterposed between and in normal engagement with said wedgin g andslidable bar members, and a revoluble key-actuated cam, the outerportion of the locking-bar extending within the sphere of the camsmovement, substantially as hereinbefore described and for the purposeset forth.

6. In a temporary binder provided with laterally separable memberscomprising the frame proper, and means for holding loose leaves therein,the combination therewith of a beveled surface or wedging element wsecured to one of said frame members, an endwise-movable spring-pressedbar having a freely-turning roll in its inner end adapted to engage saidbeveled surface, a revoluble o key-actuated cam having the opposite endof said bar in frictional contact therewith all being mounted in one ofsaid frame members, and a fellow bar secured to the other member of. theframe in frictional engagement with said roll, arranged whereby uponturning the cam in one direction, the roll is withdrawn or disengagedfrom the beveled surface, thereby releasing or unlocking the frame,substantially as described and for the purpose set forth.

7. In a temporary binder, the two laterally-separable frame members aand I), having respectively a beveled or Wedge-shaped surface w and abar member f, in combination with a spring-pressed bar g movably mountedin said frame member a, a roll 0 carried by said bar 9 interposedbetween and adapted to frictionally engage the adjacent surfaces of saidparts to and f, and a revoluble key-actuated cam or wedge h, mounted inframe member a, having the outer end of said bar 9 in engagementtherewith, substantially as described.

Signed at Providence, Rhode Island, this 10th day of June, 1902.

ISAAC H. SISSON.

Witnesses:

GEO." H. REMINGTON, WILLIAM A. SULLIVAN.

